Washing machine



l March 21, 1933.

F. A. HANSEN WASHING MACHINE Filed May 19, 1931 2 Sheets-Sheet l March 21, 1933. F. A. HANSEN WASHING MACHINE Filed May 19, 1931 2 Sheets-Sheet 2 O0 O@ OG 00 OO 03.*@ OO GO O0 OO OG. OO GG 00 OO Patented Mar. 21, 19.33 i l y UNITED STATES PATENT OFFICE FRANK A. HANSEN, oF FERGUS FALLS, MLNNESQTA WASHING MACHINE Application med May 19, 1931. sei-iai No. 538,525.

This invention relates to washing ma outer tub,'being suspended therein from the chines, and more particularly to a machine Atop wall or portion12. This outer tub 10 is wherein no moving part thereof contacts provided with a supporting frame structure, with articles disposed Within the device. generally designated as 14, which comprises An object of this invention is to provide a plurality of vertically Adisposed legs 15 con- 55 in a device of this kind means for agitating nected together by means of braces 13 or the the Water or liquid within the device, so that like. y the liquid will be forced through and about These braces 13 are preferably disposed in the articles disposed within the machine. intersecting relation between pairs of leg Another object of this invention is to promembers 15 so that the point of intersection 60 vide in a device of this kind means for proof the braces 1B will provide a table structure, viding a plurality of currents of water or the purpose for which will be hereinafter deliquid within the device so that all portions of scribed. The bottom 16 of the outer tub 10 the article will be washed or cleansed Without is preferably of concave formation and .in

contact with any of the moving parts of the like manner,l the bottom 17 of the inner tub 65 device. 11 is of similar concave formation. The

A further object of this invention is to proouter tub 10 is provided with av drain pipe 18 vide in a device of this kind means for prewhich has a valve member 19 disposed there` venting Winding or tying of the articles with in so as to permit theliquids within the two 20 each other during the agitation thereof by tubs to be drained outwardly therefrom. the currents of liquid passing through the The outer tub l0 is provided in the bottom 16 device. thereof with a bearing 2,0 disposedpaxially A still further object of this invention is to thereof through Which a drive shaftI 21 is provide a device of this kind which is so con` disposed, this drive shaft 21 being connected 25 structed that it may be used not only for the at one end toa motor or power member 22 Washing of fabrics, but also for dishes or which is mounted on the intersecting the like. braces 13. Y The above and various other objects and Apropeller or liquid agitator-23 is mountedy advantages of this invention will in part be on the drive shaft 20 intermediate the ends 30 describedin and in part be understood from thereof and at a point upwardly from the the following detailed description of the inner surface of the bottom 16 of the outer present preferred embodiment, the same tub 10. y A depending annulus or flange 24 is being illustrated in the accompanying draw secured to the inner tub 11 and is disposed ings, Wherein:- Y about the propeller or agitator 23. At the Figure 1 is a vertical sectionpartly in deupper end of the drive vshaft 21, there is tail taken substantially through the center mounted a second propeller' or agitator 25,the of a device constructed according to the preblades of which are provided with a pitch ferred embodiment of this invention; oppositely from the pitch of the propeller or Figure 2 is a bottom plan View of the inner agitator 23. y 0 removable bottom; An inner removable bottoinf26, Whichis 9 Figure 3 is a plan view of the upper proprovided with a plurality ofi-'perforations or peller, and apertures 27 therethrough, is disposed within Figure 4 is a plan view of the lower prothe inner tub 11 and is held above the upper.l peller. propeller or agitator by means of an an- Referring to the drawings wherein like nulus or ring 28, which is of a diameter to numerals of reference designate correspondloosely engage the inner surface of the inner ing parts throughout the several views, the tub 11. numeral 10 designates generally an outer tub The cylindrical wall of the inner tub 11 is and the numeral 11 designates an inner tub provided with a plurality of perfor-ations or 0 which is mounted in spaced relation t-o the apertures 29, so as to permit the passage of 1 O water from between the inner and outer tubs into the inner tub. The inner removable bottom 26 is also provided with a plurality of fins 30 which are adapted to cooperate with the annulus or rim 28 in supportin the inner bottom 26 within the inner tu 1"l. The inner tub 11 may be removably supported within the outer tub 10 so as to permit ready cleaning or drying thereof, this being accomplished by providing the inner tub 11 with an outstanding ring or flange 31 for engagement with the inwardly extending flange or top 12 of the outer tub 10. The perforations or apertures 29 in the inner tub 11 preferably terminate at a point downwardly from the top of the tub, thereby providing an air space or cushion between the inner tub 11 and the outer tub 10 so as to prevent water or liquids from running out of the top thereof. A lid or cover 32. is provided for closing the upper end of the inner tub 11, this lid being adapted to frictionally engage the top of the inner tub 11 so as to prevent splashing of the liquids outwardly of this tub during the operation of the device.

In the operation of this device, the desired liquid in the form of water or suds 33 may be disposed within the inner tub 11, which water will also pass through the openings 29 and fill up the space between the inner and the outer tubs. When the motor or power member 22 is operated so as to rotate the agitators or propellers 23 and 25, the lower propeller 23 will draw the liquid downwardly of the inner tub 11 so as to force the liquid to flow as indicated by arrows in the space between the two tubs. As the water passes from the chamber between the two tubs through the apertures 29 and into the inner tub 11, the motion of the water will be a substantially horizontal motion or current. Simultaneous with the suction formed by the lower propeller or agitator 23, the upper propeller 25, the blades of which are disposed reversely from the blades of the agitator 23, will force the liquid or water in a vertical column through the apertures 27 of the inner bottom 26 and upwardly within the inner tub 11. In this manner, when the vertical column of water meets the horizontal column, the two currents of water,.th at is, the horizontal current of water passing inwardly through the apertures 29 and the vertical column passing upwardly within the inner tub 11, will meet and form an exceedingly agitated body of water.

Where fabrics or the like are disposed within the inner tub 11, the vertical column of water will have a tendency to force' these fabrics upwardly within the inner tub, this column being disposed at substantially the center of the tub and the movement of the water adjacent the inner surface of the inner tub 11 will be a relatively downward movement caused by the suction or drawing of the lower agitator or propeller 23.

Where dishes or relatively heavy articles are disposed within the inner tub 11, the vertical column of water will, of course, not agitate the articles, but the movement of the water will be the same and will vwash the lower surface of the articles whereas the horizontal current formed by the water passing through the apertures 29 will wash the top and sides of the articles disposed within the inner tub 11.

It is obvious, from the foregoing, that the device hereinbefore described is capable of clearing both fabrics and solid articles in the form of dishes or the like, this being accomplished without making any change whatever in the construction of the device.

It is, of course, understood that various changes and modifications may be made in the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims.

I claim 1. A washing machine of the character described comprisingan outer casing, an upright inner casing removably mounted in said outer casing and disposed in spaced relation to the inner surface thereof, -said inner casing having a plurality of perforations in.

the vertical wall thereof, an axially disposed outlet port in said inner casing communicating with the space between the casing, a depending annular flange defining the marginal edges of said outlet port and extending into the space between the two casings, a vertically disposed drive shaft extending through said inner and said outer casings, a propeller mounted on said drive shaft and disposed within said annular flange and having a pitch to force liquid downwardly therethrough into the space between the two casings, and means to cause liquid upon being forced downwardly against the bottom of the inner casing to ow upwardly between the two casings and inwardly of the perforations in the inner casing in a horizontal direction, a second propeller mounted on said drive shaft `at a point upwardly from the first propeller and having a pitch to force liquid in a vertical column within the inner casing, and means for holding articles out of contact with each of said propellers but permitting liquids to pass therethrough.

2. A washing machine of the character described comprising an outer casing, an upright inner casing spaced from the outer casing having a plurality of apertures in the vertical wall thereof, a perforated plate disposed within the inner casing and in spaced relation to the bottom thereof, said inner casing having an outlet port in the bottom thereof communicating with the space between the inner and the outer oasings, an axial drive shaft extending through the bottoms of said easings, means comprisin a propeller mounted on said drive shaft a jacent the outlet port to force liquid downwardly through said outlet port of said inner casing and upwardly in the space between the inner and the outer casings and inwardly in the horizontal direction through the apertures of said inner casing, and a second propeller carried by the drive shaft and disposed upwardly of said first propeller beneath the perforated bottom and having the blades thereof disposed on an angle whereby t0- force liquid upwardly through the apertures of the inner bottom.

In testimony whereof I hereunto affix my signature.

FRANK A. HANSEN. 

